Question: Please help ASAP using the table provided. Thank you. Determine the optimum preventive maintenance frequency for each of the pieces of equipment if breakdown time

Determine the optimum preventive maintenance frequency for each of the pieces of equipment if breakdown time is normally distributed: (Round "Probability Ratio" to 4 decimal places, and all other answers to 2 decimal places. Negative values should be indicated by a minus sign.) Use Table. Click here for the Excel Data File Table B 1. Areas under the standardized nomal curve, from to z
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